Molding device



Dec. 2o, 1927.

J. T. SMITH MOLDING DEVICE Filed June 1'?, 1924 2 Sheets-Sheet 1 ATTORNEY v Dec. 20, y1927. 1,653,232

J. T. SMITH MOLDING DEVICE Filed June 17. 1924 2 Sheets-Snoer. 2

A TTORNEY sired number.

hard baked sand, prepared byA any suitablek Patented Dec. 20, 1927.l

STATES/PATENT' OFFICE! JOSEPH THODORE'SMITH, or ra'rnnson, NEW JERSEY.

MOLDING navran.

. Animation ne@ Juniwyflsai. -seriaimfmsso- This invention relates to an improved molding device, and more specilically tol one formed hard` baked y sand, `or equivalent, which device is particularly designed foiriiapid and economical molding operations.

The invention has for an object the provision of a cheap and efficient device for molding various objects in the foundry, and particularly a large number of units at the same time, Without loss of metal or burning of the molds, and with the avoidance of any considerable Wear and tear on the molding apparatus. A further object is to particularly design an apparatus for making sash ii'eights of high quality, smoothness and soundness. Further objects will appear as the following description proceeds.

In the drawings which form part of thisV n specification a preferred embodiment of the invention is described, and in said drawings,- 1

Fig. l represents a section of aA molding box and molds contained therein; Fig. 2 represents a plan vie1 of Fig. l; Fig. 3 represents a section on line 3 3 of Fier l.;

Fig. 4 is a perspective' view of onel half of a nmold unit; and l l r .Fig 5 is a similar vien'v of a half of the mold forming the end of a yseries of units. ln said preferred embodiment there is shown a metallic box l tapering toward the bottom as shown at 2, and adapted to receive mold units 3. of which there may be any de These units are formed of process, :is for example by employingsand mixed with an oil, and baking it to form a coherent unit. Preferably they are made interchangeable, the end units having flanges 4 which cooperate with the sides 5 to form a trough 6 for the reception of metal. .In the example shown, the molds are made for casting sash Weights, the passagesl or holes i leading rfrom the metal receptacle or reservoir 6, being arranged in the usual manner.`

to liovv the. metal to the molds. In this manner each mold will be filled Without spilling any metal. and there will be but' little Waste` of metal inasmuch as the Workmanioperat-a ing the ladle Will be able to quicklynote when the molds are full.

When the units are placed Within the i mold cavity forme metal container l. shown in Fig. l, they 8 operating" upon `a follower plate 9 and op erated by a handle 10,

'When thus Compressed together .the closely contacting snrfaces of the molds Will prevent loss of metal. The metal box l may be provided With trim`- nions 1l, `adapted to be supported in any, suitablemanner for moving the box around l the foundry.

,are compressed,together'hy means of a screw Weights a large number of other castings may be made by the use of this apparatus.

As many apparently Widely different embodiments of this invention may be made without departing from the spirit'thereof,

- it is to be understood that theinvention is notlimited to the precise embodiment shown except. as indicated .in

I claim:` l. 4A molding blemcnt formed of hard the following claims:

baked sand and having mold cavities formed p in one side thereof, said .molding element khaving a fiat top portion with end flanges extending upwardly and openings provided in said flat top portion communicating with 'Y said .mold cavities, whereby when a plurality of said molding elements are assembled the flat top portion with the upwardly eX- tending flanges will form a receptacle for the molten metal. f

2; A molding unitformed of hardbaked vsand of substantially flat rectangular yshape 'and provided With ay plurality of mold cavitop portion beiipivard'ly ex-r ties in one face thereof, the ing flat] and Y provided `With `tendingflanges at each end.

3. A mold comprising a plurality of pairs of molding elements formed of hard baked sand, one member of each pair being formed with a mold cavit complementary to the in the other member of v the pair, said elements having flat top por tions With upwardly extending flanges adapted to cooperate to form a receptacle for the molten metal. v

4l. A mold comprising a plurality of pairs oi molding elements 'formed of hard baked sand, one member of each pair being formed with a mold cavity complementary to the mold cavity formed in the other member of the pair, said elements having flat to portions with upwardly extending anges adapted to cooperate to form a receptacle for the molten metal, the end elements being provided With upwardly extending flangesI on three sides.

5. A molding apparatus comprising a box,

other elements to provied a receptacle for molten metal on top of the mold and means .ment having upwardly extending flanges which cooperate `With the flanges of the for compressing the molds together in said box.

` In testimony that I claim the foregoing,

Ihave hereunto set my hand this ifth day 30 of June, 1924.

JOSEPH THnonoRE SMITH. 

